Hobsbaum's most direct impact on literature was as the animating force behind The Group, a sequence of writing workshops in Cambridge, London, Belfast and Glasgow, in turn. Although there was some slight overlap in personnel with The Movement, the various incarnations of the Group had a more concrete existence and a more practical focus.

The Cambridge Group was initially concerned with the oral performance of poetry, but soon turned into an exercise in practical criticism and mutual support for a network of poets. This Group relocated to London when Hobsbaum moved there in 1955, becoming The Group, and continuing until 1965, chaired by Edward Lucie-Smith after Hobsbaum's departure for Sheffield.

Though he was a poet as well, it was as a critic that Hobsbaum was best known. And though as one of his obituarists noted, "[h]e was famously not a man who felt a pressing need to endear himself to students", he was a charismatic teacher, and fiercely committed to those with a commitment to literature. The dedication of Alasdair Gray's The Book of Prefaces is "to Philip Hobsbaum poet, critic and servant of servants of art". Seamus Heaney also dedicated the poem "Blackberry-Picking" (from Death of a Naturalist, 1966) to Philip Hobsbaum.